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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 848 · 40 questions
TalentJR

How to do it in your head (Biggest part first): Split the 3-digit number into hundreds, tens and ones. Multiply the hundreds and keep that number in your head. Multiply the tens and add, then multiply the ones and add.

NameDateTime takenScore ___ / 40
  1. 1.127 × 8 =
  2. 2.136 × 8 =
  3. 3.507 × 6 =
  4. 4.364 × 3 =
  5. 5.157 × 7 =
  6. 6.248 × 8 =
  7. 7.919 × 6 =
  8. 8.254 × 4 =
  9. 9.617 × 9 =
  10. 10.931 × 6 =
  11. 11.521 × 3 =
  12. 12.554 × 4 =
  13. 13.676 × 7 =
  14. 14.193 × 6 =
  15. 15.741 × 9 =
  16. 16.709 × 8 =
  17. 17.326 × 3 =
  18. 18.983 × 8 =
  19. 19.657 × 8 =
  20. 20.378 × 7 =
  21. 21.129 × 9 =
  22. 22.899 × 4 =
  23. 23.377 × 9 =
  24. 24.849 × 7 =
  25. 25.721 × 4 =
  26. 26.759 × 6 =
  27. 27.814 × 6 =
  28. 28.238 × 6 =
  29. 29.156 × 4 =
  30. 30.115 × 7 =
  31. 31.246 × 5 =
  32. 32.851 × 5 =
  33. 33.372 × 7 =
  34. 34.732 × 8 =
  35. 35.198 × 4 =
  36. 36.389 × 3 =
  37. 37.269 × 5 =
  38. 38.336 × 3 =
  39. 39.404 × 8 =
  40. 40.814 × 3 =

Answer key

  1. 1016
  2. 1088
  3. 3042
  4. 1092
  5. 1099
  6. 1984
  7. 5514
  8. 1016
  9. 5553
  10. 5586
  11. 1563
  12. 2216
  13. 4732
  14. 1158
  15. 6669
  16. 5672
  17. 978
  18. 7864
  19. 5256
  20. 2646
  21. 1161
  22. 3596
  23. 3393
  24. 5943
  25. 2884
  26. 4554
  27. 4884
  28. 1428
  29. 624
  30. 805
  31. 1230
  32. 4255
  33. 2604
  34. 5856
  35. 792
  36. 1167
  37. 1345
  38. 1008
  39. 3232
  40. 2442

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